Furnace-blower



(No Mcdel.)

P. RICHARDS; FURNACE BLOWER.

Patented Feb. 5, 1884.

UNITED STATES PATENT OFFICE.

PHILIP RICHARDS, or wILKEsBARnE, PENNSYLVANIA.

FURNACE-BLOWER.

SPECIFICATION forming part of Letters Patent No. 293,084, dated February 5, 1884. Application filed December 11, 18%. (N0 model.)

To 0. whom, it may concern Be it known that I, PHILIP RICHARDS, a citizen of the United States, and a resident of Wilkes-Barre, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Furnace- Blowers; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification,and in which- Figure 1 is a perspective view of my de vice. of the same. Fig. 3 is a detail view of the conical steam-chest with its steam-pipe and nozzles detached from the casing; and Fig. 4. is a cross-section through line x r, Fig. 2.

Similarletters of reference indicate corresponding parts in all the figures.

My invention has relation to devices for p roducing a combined steam and air blast in the furnaces of steam-boilers, for the purpose of rendering combustion more perfect, and thereby saving fuel; and it consists in the construction and combination of parts of a device adapted to be attached to and used in combination with the furnace, substantially as will be hereinafter more fully described and claimed.

In the accompanying drawings, A. denotes a casing in the shape of a truncated cone, made of sheet metal, and connected to the small end of another smaller conical casing, B. The larger cone,A, is divided by the diaphragms or partitions G into a series of chambers, D, extending longitudinally to the smaller coue,B,which is intersected at right angles by the partitions O at the point where it is connected to the larger cone,'A, as will appear more clearly by reference to Fig. 4 of the drawings.

space formed between the curved walls or diaphragms O is covered by a curved cap, E, so as to prevent the fuel and products of combustion from entering into this central chamber.

Fig. 2 is a longitudinal sectional view The It will be seen that the diaphragms G which form the two lowermost compartments D project some distance out over the rim of the cone. This is for the purpose of guiding the current of steam and air to the farther side of the furnace across the grate, the draft or blast which is projected through the bottom chambers D D, passing just over the top of and at right angles to the grate-bars, which are indicated by dotted lines in the drawings.

Arranged inside of the smaller c0ne,B,is the conical steam-chest F, which communicates with the boiler through the steam-pipe G, and is provided with four nozzles, H, one for each of the compartments D. By reference to Fig. 2 of the drawings it will be seen that these nozzles project into their several com partments, so as to causea jet of steam to pass through the same. This creates suction in the cone A, and air is drawn into its compartments through the smaller cone, B, as. indicated by the arrows, the pointed end of the conical steam-chest F reducing the resistance to the air as it passes through cone B to a minimum.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States- The improved furnace-blower or blast apparatus herein shown and described, consisting of the cones A and B, partitions 0, whereby the chambers or'compartments D are formed, and conical steam-chest F, provided with the steam-pipe G and nozzles H, projecting with their upper ends intothe compartments D, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

THEO. REINEFELL, W. S. PARSONS. 

